> I'm using MySQL 5.1.30 and have several memory tables with indexes on the
> appropriate columns. When I try and join 2 particular memory tables together
> to get 5k rows, it takes 90 seconds.
> This is incredibly slow considering table1 has 11k rows and table2 has 5k
> rows. A table join like thi
Memory tables use hash indexes by default instead of b-tree. Try
changing the index, that should help significantly.
regards,
Walter
On Tue, Mar 31, 2009 at 6:47 PM, mos wrote:
> I'm using MySQL 5.1.30 and have several memory tables with indexes on the
> appropriate columns. When I try and join
